Don, if you don't have 'Desk/HomeOffice', click on the arrow point to the right of the Power Schemes setting box and tell me what settings you do have- if any. All brands don't have the same names for settings, tell me your make and model and whether you have a desktop or laptop. I got fooled on this once and finally found out a particular brand has it's own names for Power Schemes.
Also, do you have the ability to set to go into Standby?